This weekend, Larsen & Toubro and Shanghai Tunnel Engineering Company (L&T – STEC) JV announced the completion of casting work for a 1000 tunnel rings which will form the twin tunnels of Mumbai Metro’s 33.5 km Line-3 between Cuffe Parade & Aarey Colony.
These tunnel ring segments will be erected by three TBMs (Wainganga 1, 2 & 3) exclusively for tunnels on the 4.157 km package UGC-07 located on the northern end of the line between CSIA Terminal 2 – Marol Naka – MIDC – SEEPZ – Sariput Nagar Ramp. A tunnel ring is typically 1.4 m wide, and consists of 5 segments + 1 ‘key’ segment. For the entire 33.5 km line, approximately 40,000 rings will be cast for all 7 civil packages.
Some images of L&T-STEC’s yard on the Jogeshwari–Vikhroli Link Road (JVLR) –
Parts of TBM D215 ‘Wainganga-3’ are currently being lowered into the Pali Ground Shaft, while parts of TBM D213 ‘Wainganga-2’ have been stationed near the Sariput Nagar Ramp waiting for the shaft to get ready.
For more updates, check out the Mumbai section of The Metro Rail Guy!